Multiple choice general knowledge math & puzzles

The fourth power of a positive integer is equal to four times its square. Find that number!

  1. 2

  2. 1

  3. 0

  4. 4
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A Correct answer
Explanation

Let the number be x. The problem states x⁴ = 4x². Since x is a positive integer, we can divide both sides by x²: x² = 4. Therefore x = 2 (positive integer). Checking: 2⁴ = 16 and 4(2²) = 4(4) = 16.

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